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    Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. This P201631 Stavely Gravity Traverses SCBA267GU 1VD is the first vertical derivative of the spheical cap Bouguer anomaly grid for the Stavely Gravity Traverses, 2016 (P201631). This gravity survey was acquired under the project No. 201631 for the geological survey of VIC. The grid has a cell size of 0.0005 degrees (approximately 50m). A total of 3564 gravity stations at 200m spacing were acquired to produce this grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

  • Categories  

    Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This P201631 Stavely Gravity Traverses SCBA267GU is a complete Bouguer anomaly grid for the Stavely Gravity Traverses, 2016 (P201631) survey. This gravity survey was acquired under the project No. 201631 for the geological survey of VIC. The grid has a cell size of 0.0005 degrees (approximately 50m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 3564 gravity stations were acquired to produce this grid.

  • Categories  

    Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Stavely Gravity Traverses, 2016 (P201631) contains a total of 3564 point data values acquired at a spacing of 200 metres. The data is located in VIC and were acquired in 2016, under project No. 201631 for Geological Survey of Victoria (GSV).

  • Categories  

    Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Gippsland Basin Gravity P201430 CSCBA267GUVD is the first vertical derivative of the complete spherical cap Bouguer anomaly grid for the Gippsland Basin Gravity Survey (P201430). This gravity survey was acquired under the project No. 201430 for the geological survey of VIC. The grid has a cell size of 0.00501 degrees (approximately 497m). A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. A total of 1211 gravity stations at 500m spacing were acquired to produce this grid.

  • Categories  

    Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Gippsland Basin Gravity P201430 SCBA267GU is a complete Bouguer anomaly grid for the Gippsland Basin Gravity Survey (P201430) survey. This gravity survey was acquired under the project No. 201430 for the geological survey of VIC. The grid has a cell size of 0.00501 degrees (approximately 497m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 1211 gravity stations were acquired to produce this grid.

  • A morphological study of zircons from the granitic rocks of southeastern South Australia has been made using reduced major axes, length/breadth ratios, colour, zoning and other features. In general, zircons in the biotite adamellites (Encounter Bay and Kingston areas) are more elongate, less euhedral and freer of inclusions and zoning than those occurring in the other granitic rocks of the region. Results suggest that the biotite adamellites are genetically related (they share the same zircon characteristics) and that they are unrelated to the more widespread eastern zone of hornblende-biotite granite, quartz porphyry and hornblende and biotite microgranite. The rocks in the eastern zone share very similar zircons and appear to be related.

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    Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Southern Delamerian Gravity along seismic lines, Vic 2009 (P200902) contains a total of 667 point data values acquired at a spacing of 400 metres. The data is located in VIC and were acquired in 2009, under project No. 200902 for None.

  • Categories  

    Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Bendigo - Mitiamo Regional Gravity Survey, Vic 2007 (P200733) contains a total of 8050 point data values acquired at a spacing between 500 and 1000 metres. The data is located in VIC and were acquired in 2007, under project No. 200733 for Geological Survey of Victoria (GSV).

  • Categories  

    Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Ballarat Colac Infill (P199634) contains a total of 905 point data values acquired at a spacing between 1000 and 2000 metres. The data is located in VIC and were acquired in 1996, under project No. 199634 for None.

  • Categories  

    Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Bendigo Infill (P199636) contains a total of 912 point data values acquired at a spacing of 1500 metres. The data is located in VIC and were acquired in 1996, under project No. 199636 for None.